4 · Dow Requirements
Dow Requirements
Where Dow differs from or adds to the standards
| Topic | BS 5306-3 BS | NFPA 10 NFPA | Dow CTT DOW | CTT ref |
|---|---|---|---|---|
| Which standard applies on site | – | – | to be added | |
| Monthly inspection: who and how recorded | Responsible person | Any trained person; tag or electronic | to be added | |
| Annual service content | Basic service | Annual maintenance | to be added | |
| Deeper test approach (discharge vs hydro) | 5-yr extended service; CO₂ 10-yr overhaul | 6-yr maintenance; hydro 5 / 12 yr | to be added | |
| Labelling / tagging format | Service label | Tag + collar + hydro label | to be added | |
| Extinguisher types used in plant areas | – | – | to be added (e.g. wheeled units, specific agents) | |
| Records system | Report to responsible person | Tag/records kept | to be added | |
| Defect reporting and condemnation route | – | – | to be added | |
| Replacement / maximum age policy | – | – | to be added | |
| Permit / access rules for plant areas | – | – | to be added |